Join Date: Aug 2004
Location: Melbourne - Australia
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I've found the 'loosening' caliper bolts and squeezing on mechanical brakes isn't very effective.
Firstly, you need to make sure that the inner pad (closest to the wheel) is JUST touching or JUST not touching the rotor. You should loosen the caliper mounting bolts (two 5mm allen bolts), and then with your hands, slide the caliper around around in minimal amounts untill the inner pad
is correctly in position. Tighten these bolts, spin the wheel an make sure the rotor isn't rubbing on the caliper body.
Next you will need to adjust the outer pad accordinly. This is simply done with cable tension. You should fine tune this at the lever. Screw the black dial where the housing comes into the lever counter-clockwise (outwards). This will TIGHTEN the cable, tightening the brake, moving the outer pad furthur in. If you need to make large adjustment you should pull more cable through at the caliper by loosining the 5mm allen bolt and pulling cable through. If the outer pad is rubbing and you need to loosen it, do the reverse of above.
Hope this helps